Nail-extractor



(N0 Model.)

G..J. CAPBWBLL.

NAIL BX'TRAGTOR.

Patented Deo. 18, 1888.

f f` l lNrr-E STATES PATENT EEiCE;

NAI -EXTRACTO R.

SPECIFICATION forming part of Letters Patent N o. 394,756, dated December 18, 1888.

Application iiled April 7, 1888. Serial No. 269,938. (No model.) Y

T0 @ZZ whom t may concern:

Be it known that I, GEORGE JOSEPH CAPE- WELL, of Cheshire, in the county of New llaven and State of Connecticut, have in` vented certain new and useful Improvenlents in Nail-Extractors, of which the following is a tull, clear, an d exact description, whereby any one skilled in the art can make and use the same.

My within-described invention relates to the class ot' n'ail-pullers that are provided with pointed jaws and a device for hannnering the jaws into the material into which the vnail has been driven, so that when the device as a whole is tilted to one side the jaws will keep firm hold of Opposite sides of the nail and pull it out.

The obj ect of my within improvement is to provide a nail-puller with jaws t-hat will adapt it for use with either the cut nails, that are usually oblong in cross-section, or with the wire nails, that are round incross-section, the jaws being especially adapted to grasp the shank otl the nail lirmly without injuring the head, in case there is one on the nail, and with power to remove the nail even when the head has been broken ot't.

",lo this end my improvement consists in a nail-puller havinga stock or handle, movable graspil'ig-jaws and percussive device, and the peculiar clamping-lever pivoted to the lower end of the stock.

It vfurtherconsisis in the combination. of the stock or handle, the percussive device', and the peculiar grasping-jaws, and it :further consists in details ot' the several parts and their combination, as more particularly hereinafter described, and pointed out in the claims.

Referring' to the drawings, Figure l is a side view ot' a nail-puller embodying my invention. Fig. 2 is a detail view of the lower part of the nail-puller with the stop cut in section to show the construction and arrangement of the jaw-lever and the jaws. Fig. is a detail view, in central section, of the lower part oi' the stock, showing the position of the parts when a nail is nearly drawn. Fig. 4 is adetail view in section of the hanunerstop.

In nail-extractors of the class to which my within-described invention relates the jaws borne in the device are driven into the wood into which a nail has been embedded with an edge lying on opposite sides of the nail, and the nail-extractor as a whole is pulled sidewise, rocking upon a foot or lever-arm, and thus holding the jaws tightly closed upon the nail, so that a continued pull will draw the nail out of the material into which it has been driven. It is evident that with a given length of handle the nearer the bearing-point of the foot that forms the fulcrum can be brought to the nail or center of the jaws the greater will be the leverage that can be obtained in the beginning of the operation of withdrawing the nail, and my improved nail-puller, as within described, is constructed and arranged so as to secure the greatest advantages in this regard, and with special reference to Obtaininga secure grasp upon the nail-near the head, a powerful pull at the beginning of the operation, and a quicker action as the nail is coming out of the wood. f

In the accompanying drawings," the letter a denotes the stock, that is preferably made of metal cast to shape and in form of a fiattened tube or with a lengthwise channel, in which is located a sliding bar or hammer, l), that is the percussive device by means of which the jaws c dare driven into the material in which the nail isheld and from which it is to be drawn. 0n the upper end of this bar is formed a handle, o', and in order to prevent theaccidei'ital withdrawal of the hammer from the channel in which it travels the spring-stop e is arranged near the top of the stock, with an end projecting into the channel in such position as to engage in the stopsocket e', that may be a notch cut into the adjacent side of the hammer or bar. At the foot of the stock, and with their ends in the path of movement of the hammer and so as to be moved by it, are secured the jaws c d by pins that pass through the slots c cl, and this arrangement permits a certain lengthwise movement of the jaws in the line of the stock, while limiting the extent of such movement. rlhe edges of the channel in the stock form guides for the backs of the jaws, except where they pass through the slot f in the jaw-lever f. The latter is a bent lever with one arm extending along the back of one of the jaws and secured by a pivot or pin to the bottom of the stock, while the longer arm of the leven extends across the bottom of 'the IOO stock and upon both sides of the jaws that pass through the slot in the lever, and beyond the jaws the lever is curved downward and then upwan'l, forming the tule-rum upon which the whole device is rocked in the operation of drawing the nail. On this'liulcrnm side of the lever there is formed a stop that consists of the hook g, Aformed on the stock, and the shoulder g', formed on the lever, and the contact of these two parts prevents the level' from being swungl so lL'ar downwartfl as to disengage it from the jaws.

The long bearing of the back ot' the jaw d against the upright arm oi' the lever is ol' materia] advantage in guiding and holding the jaws and in keeping them closed npon a nail.

In order to especially adapt the jaws oi' the nail-puller to grasp a wire nail, that has a round shank or stem, and at the same time to avoid crushingI the head oi sueh a nail, the points of the jaws are quite sharply curved or hook-shaped and are tinted on the inside, so that while the jaws grasp the shank ot' the nail 7ly very Yfirmly there is room t'or the head ol' the nail to liebctween. the jaws without being pressed ont ot.' shape.

When the nail-puller is in position to draw a nail, as shown in Fig. 2 o1' the drawings, a bearing :is formed against the under side otl the jaw-lever at apoint quite near the jaws, and, owing to the location of the :fulernm so near the weight, (the resistance oliered by the nail against flrawing,) a powerful leverage is secured that is amply snliieient to start the nail, and the further roeking ot' the nailpuller quickly draws the .nail as the lulcruin changes to a point more distant t'rom the nail.

I claim as my inventioni. In combination with a stock, apercnssive device conueete il thereto, the jaw-closing lever with the tnlerum or bearing, and the hmgthwise-moving jaws supported in the path ol movement ol' said lgmrcussive device, the said jaws having hook-shalnal ends that are sharply curved and are also tinted or concaved on the inside, and graspilig-surt'aces ot' the jaws, all substantially as described.

2. In combination with the stock otf a nail puller, the sliding hammer, the lcalgthwisemoving jaws held in the path of movement ol" said hammer, and the jaw-leverhaving an upright arm pivoted upon one side olil the jaws and extending across thc jaws and forming on the opposite side a Vlnlernin or bearing, all substantially as described.

1:3. In combination with the stock of a nailpuller, the pereussive device having a sliding play thereon, the jaws having grasping-points and at taohed to the stock in the path ot' move ment ot' the pereussive device, the bentjawlever having` an upright arm forming a bear ing for the back ot' one of the jaws a-nd slottetfl for the 1,)assage ot' the jaws, and the stop that limits the swinging play of thel ja\\'-lever, all substantiz'illy as desel'ibetl.

W itnessos:

Unas. L. Bn notruf, Hanni.' R. \\'1LL1A;us. 

